Roku Streaming Stick Plus (2025) vs Roku Ultra (4640)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Streaming Stick Plus (2025) compared with Ultra (4640)
RokuStreaming Stick Plus (2025)RokuUltra (4640)
Overview
ReleasedJune 2025October 2016
Video and audio
Resolution4K4K
HDRHDR10+, HDR10 and HLG (better)HDR10
VideoUp to 2160p at 60 fps (3840 × 2160) with up-scaling from 720p and 1080p; needs HDCP 2.2 for 4KUp to 4K at 60 fps; HDCP 2.2; upscales 720p and 1080p sources to 4K (Roku launch release reproduced by Display Daily)
HDRHDR10, HDR10+ and HLGHDR10 (Roku's exact Cooper/4640X developer row); Dolby Vision is not supported
AudioDigital stereo over HDMI; DTS Digital Surround and Dolby-encoded audio pass-through over HDMI (Roku doesn't list Dolby Atmos)Dolby Digital and Dolby Digital Plus decoding; optical digital audio output for compatible receivers and soundbars (Roku launch release)
Performance
SoftwareRoku OSRoku OS
Chip detailsArm Cortex-A55Arm Cortex-A53 quad-core 1.2 GHz; OpenGL ES 2.0 (Roku's Cooper/4640X developer row)
Memory1 GB1 GB (Roku's exact Cooper/4640X developer row)
Storage–MicroSD slot provides additional channel storage; USB is for local media playback (Roku launch release). No verified built-in user storage capacity
Software and services–Roku OS; apps and features vary by region and software version
Connections
Wi-FiDual-band Wi-FiWi-Fi 5
EthernetNoYes
Voice remoteYesYes
PortsBuilt-in HDMI; USB-C for powerHDMI, Ethernet, optical digital audio output, USB media playback port, microSD slot and power input
Wi-Fi and BluetoothDual-band Wi-Fi (2.4 GHz and 5 GHz)Dual-band 802.11ac MIMO (Roku launch release)
Smart homeWorks with Apple AirPlay and HomeKit, Google Home and Alexa–
RemoteVoice remote with TV power, volume and mute buttons; two pre-installed AAA batteriesOriginal point-anywhere remote has voice search, headphone jack, headphone volume, gaming buttons and lost-remote finder; no TV volume or power control (The Next Web)
Design
TypeStickBox
Power5 V, 1 A; about 2.5 W typical when streaming 4K–
Size3.7 × 0.80 × 0.45 in; 26.0 g4.9 × 4.9 × 0.9 in; fanless design (Tom's Guide)
In the boxRoku Streaming Stick Plus, voice remote, two AAA batteries, USB-C to USB-A power cable–

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